Box-covering machine.



J. ALGER.

BOX COVERING MACHINE.

APPLICATION FILED 0013.16, 1909.

Patented June 4, 1912.

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COLUMBIA PLANDGRAPH C0,.W4SHINOTON. D. c.

J. ALGER.

BOX covmmm MACHINE.

APPLICATION FILED OCT. 16,1909.

' Patented June 4, 1912.

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Qua-$1M J. ALGER.

BOX covnnme MACHINE.

APPLICATION FILED 0OT.16, 1909;

Patented June 4, 1912.

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JOSEPH ALGER, OF BROCKTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TOHIMSELF AND ON E-HALF T0 ARTHUR H. ALGER, OF BROCKTON, MASSACHUSETTS.

BOX-COVERING MACHINE.

Original application filed June 12, 1908, Serial No. 438,146. Dividedand this Serial No. 522,978.

Specification of Letters Patent.

Patented June 4, 1912.

application filed October 16,

To all whom it may concern:

Be it known that I, JOSEPH ALGER, a citizen of the United States,residing at Brockton, county of Plymouth, Commonwealth of Massachusetts,have invented certain new and useful Improvements in Box-CoveringMachines, of which the following is a specification.

This invention relates to machines for covering boxes and particularlyto that class of machines which apply the covering to the box in theform of a blank which is folded about the box and attached thereto.

The present case is a division of my former application filed by me June12th, 1908, and serially numbered 438,146. In that case I pointed outthat there are two principal styles of boxes which are papered in thisway, the one a plain box with the usual rectangular or squared cornersand sides, and the other a box having about its top or bottom edges, orabout both, an extension or flange. The papering of these two types ofboxes in a single machine presents a diflicult problem as thedifferences in form and the action in handling of the coverings requiresa great scope of adaptability in the mechanisms of the device.

While involving the same machine as that set forth and disclosed in mysaid original application the present application is clevoted to thatadaption of the machine to the papering of the type of box seconddescribed above and referred to as the extension edge box.

In my former Patent No. 820,166 I disclosed a machine of this generalnature and while this machine is operative, it is subject to variouslimitations which it is the object of the present invention to overcomeas well as to provide new features and elements and other generalimprovements.

In the present machine I have provided a new means for forming the turnin the cover at the ends of the box, an improved system of tucking inand turning the paper at the edges, an improved driving system,centering, locating mechanisms, and more complete arrangements foradjustment and interchange with various other constructions andarrangements of parts which are embodied in the machine.

In the specification which follows I shall refer only to those partsdirectly associated with the special treatment of the extension edge boxas the general structure of the machine is fully disclosed and treatedin the original application as stated above.

Throughout the specification and drawings which form a part thereof likereference numerals are used to indicate corre sponding parts and in thedrawings, Figure 1 is a partial side view of my machine on a generalcentral cross section thereof in which the side folders and box supportappear in section. Fig. 2 is a side view of the box support with the endfolders swung up into position, Fig. 3 is a plan view of a box upon thesupport with one side folder swung up, Fig. at is a detail of an endturner brush, Fig. 5 is a general view showing an extension edge boxresting upon a sheet of covering paper, and Fig. 6 is a centrallongitudinal section of the box support and folders showing thelongitudinal placers.

12 is the removable box support adjustably mounted upon the bed 1 of themachine through nuts 12 on the threaded standard 12. The upper surfaceof the block 12 supports the box B just below the lower edges of theside and end folders and 64 so that when these folders are swung upabout their pivots 23 the said bottom edges will rest upon and pressdown the covering paper upon the said extension as will be seen byreference to Fig. 2. Upon both sides of the block or support 12 arecentering fingers 101 pivoted at 102 and normally held with thecentering point 103 above the plane of the block 12 by a spring 104. Thepoints 103, therefore, assure the proper location of the box laterallywhile the placers 11 on the plunger 6 adjust it longitudinally.

The placers 11 are mounted on arms 11. adjustably mounted in blockspivoted at 11 on the end of the plunger 6. When the plunger 6 is raised,the arms 11 drop from the horizontal position shown, thus bringing theplacers 11 slightly nearer together. When the plunger 6 descends thearms 11 are swung back to the horizontal, as the placers slide along thebottom of the box B. If either end of the box B happens to be nearercenter than the other, the placer 11 at that end will contact with it,pushing the box back to its correct position. The plunger 6 iscontrolled by the cam indicated at the bottom of Fig. 1.

The points 103 of the pivoted centering fingers 101 in holding the boxcentered project slightly above the extension edge but as the sidefolders 65 are swung up the bot tom edges will press down on the points103 which yield below the level of the extension edge to permit thelower bearing face of the folder to press down upon the extension ed e.

Z8 is an end turner brush adjustably mounted in a connection 42 in theslide 41 which is worked in the slideway 10 by the lever 50.

On the face of the side and end folders are adjustably mounted edgeturners 67 formed as open spirals so that the internally engagingbrushes 15 will pass therethrough in their downward movement.

The spiral springs forming the edge turner 67 are hooked attheir endsover the pins on blocks 67 which are clamped by a screw 67 on theopposite edges of the folders 6 1 and 65. By loosening the screws 67 2the blocks 67 may be slid up or down upon the folder edge to raise orlower the turner 67 to the proper height to clear the edge of the box.

The operation of the device is as follows :A box B is centered upon itsblank (see Fig. 5) which has been previously gummed and the box andblank are then set upon the support 12 of the machine. The longitudinalcenterers in descending place the box in its proper position withrelation to the end folders 6 1 and the side placer points 103 hold itin proper position with regard to the side folders 65. Thus properlylocated the side flaps C of the covering paper are folded up by theupward swing of the side folders 65 which turn the flaps C up againstthe side of the box and press into the angle between the box and itsextension the portion 6 which papers the top area of the extension edge.As soon as the folder has assumed an upright position the edge turners67 will bring the upper edge or margin 0 of the flap G over the upperedge of the box and in line with the inside brushes 15 which descend topaste it against the inner face of the box edge. As the side folders 65drop back after turning up the side flap C of the covering sheet againstthe box, the end turning brushes 48 (see Fig. 1) are advanced past theend of the box support 12 to turn the flap C around the corner of thebox B and paste it thereagainst. The slides 40 are so set that thebristles of the brushes 48 travel against the end of the box B with awiping effect, so that the flap G is not only folded around the cornerbut is pressed against the box. This flap is covered by the end flap Cwhich is folded up under the wrapper of the end folders &8 by thefolders 65 which are next swung up against the box, as shown in Fig. 3.In this position it will be seen that the edge turners on the endfolders also overlie the edge of the box to turn in the marginal portion0 of the end flaps C so as to bring them under the brushes 15 of theplunger in its second descent.

What I therefore claim and desire to secure by Letters Patent is 1. In amachine of the class described, a support for a box and a coveringblank,

side folders mounted to be moved relativelythereto to fold the blankthereabout, means for positioning the box laterally on said support,said means being yieldable upon thearrlval of the folders at theirproper position.

2. In a machine of the class described, a support for a box and acovering blank, side folders mounted to be moved relatively thereto tofold the blank thereabout, means for positioning the box longitudinallyon said support, means for holding the box positioned laterally on saidsupport, said means being yieldable upon the arrival of the folders attheir proper position.

3. In a machine of the class described, a support for an extension edgebox and a covering blank therefor, side folders mounted to be movedrelatively thereto to overlie the edge of a box on said support to foldthe blanks thereabout, means for positioning the box laterally on saidsupport, said means being yieldable upon the arrival of the folders totheir proper position.

4:- In a machine of the class described, a support for an extension edgebox and a covering blank therefor, side folders and end folders mountedto be moved relatively thereto to overlie the edge of a box on saidsupport to fold the blanks thereabout, means for positioning the boxlaterally and longitudinally on said support With regard to saidfolders, said means being yieldable upon the arrival of the folders totheir proper position.

5. In a machine of the class described, a support for a box and acovering blank, a folder for laying the blank against the box, saidsupport and folder being relatively movable to operatively engage theparts, means for positioning the box laterally on said support, saidmeans being yieldable upon the positioning of the folders and support totheir proper relative position.

6. In a machine of the class described, a support for a box and acovering blank, a folder for laying the blank against the box, saidsupport and folder being relatively movable to operatively engage theparts, a dog pivoted to the side of said box support for positioning thebox laterally on said support, said dog being yieldable upon thepositioning of the folders and support to their proper relativeposition.

7. In a machine for covering paper boxes, a support for a box andcovering paper, a pair of folders for bringing the covering paper aboutthe box, means for relatively moving said support and folders so thatthe folders will overlie the margins of said support, means for holdinga box positioned on said support between said folders, said means beingyieldable upon the approach of the folders.

8. In a machine for covering paper boxes, a support for a box andcovering paper, a pair of folders for bringing the covering paper aboutthe box, means for relatively moving said support and folders so thatthe folders will overlie the margins of said support, a dog pivoted toeach side of said box support for holding a box positioned on saidsupport between said folders, said dogs being yieldable upon theapproach of the folders.

9. In a machine for covering paper boxes, a support for a box andcovering paper, a 20 pair of folders for bringing the covering paperabout the box, means for relatively moving said support and folders sothat the folders will overlie the margins of said support, means on themargins of said support 25 for holding a box positioned on said supportbetween said folders, said means being yieldable upon the approach ofthe folders to said margins.

In testimony whereof I aflix my signature 30 in presence of twowitnesses.

JOSEPH ALGER.

WVitnesses ELLIS SPEAK, J r., ARTHUR H. ALGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

